# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -2.69         0.96         1.62  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//W1W1_20120329_102001001868EA00_10200100198FB500_2m_lsf_seg2_meta.txt 
       -2.13        -1.72         0.95  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//W1W1_20120329_102001001868EA00_10200100198FB500_2m_lsf_seg1_meta.txt 
        0.17        -2.98        -2.85  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20120703_1030010019B0B700_10300100185DF400_2m_lsf_seg1_meta.txt 
        0.79        -1.67         1.08  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20130825_103001002686A600_103001002612C800_2m_lsf_seg1_meta.txt 
        2.11        -1.54        -0.68  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20140417_102001002ECFC200_102001002DA41400_2m_lsf_seg1_meta.txt 
       -2.43        -2.15         0.09  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20150311_1040010008619D00_104001000837D800_2m_lsf_seg1_meta.txt 
        1.10         0.54        -3.94  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160504_102001004E4BD500_102001004FD19200_2m_lsf_seg1_meta.txt 
       -3.10         6.69        -0.37  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20170609_1020010064A54B00_1020010063A05700_2m_lsf_seg1_meta.txt 
        4.81        -3.28         0.08  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20170906_10200100657C3700_1020010064942100_2m_lsf_seg1_meta.txt 
       -0.77         0.53        -1.10  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180401_103001007B0C2200_103001007CB6F800_2m_lsf_seg1_meta.txt 
        0.68         0.20         0.79  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20180424_1020010072508700_10200100731A5F00_2m_lsf_seg1_meta.txt 
        3.27         6.29         1.30  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20190221_103001008CB9B100_103001008D29E500_2m_lsf_seg1_meta.txt 
       -1.82        -1.88         3.03  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20200330_104001005ABC5F00_10400100599E2800_2m_lsf_seg1_meta.txt